Comparison of Heart Rate Variability, Physical Activity, and Fitness Parameters Between Healthy Women and Breast Cancer Survivors - Martinez-Rosales, Elena; Hernandez-Martinez, Alba; Alcaraz-Ibanez, Manuel; Lopez-Sanchez, Laura; Diez-Fernandez, David Manuel; Soriano-Maldonado, Alberto; Artero, Enrique G (Circulation, 2020)